[jQuery] JS stops running

[atomicnuke]

I have the following function, it gets the data in a form and sends it
to be verified before posting.

$("#commentform form").submit(function(){
                var uname = $("#commenter").val();
                var email = $('#email').val();
                var url = $('#website').val();
                var commment = $('#commenter').val();
                $.ajax({
                        type: "POST",
                        url: "../../../testingphase/blog/commenttest.php",
                        dataType: "html",
                        data: "commenter="+escape(uname)+'&email='+escape(email)
+"&website="+escape(url)+"&comment="+escape(comment),
                        success: function(msg) {
                                if(msg == 0)
                                { $('#errormess').html(msg); }
                                else { alert('Wow');}
                        }
                });
                return false;
        });

First I just set the variables and showed them in an alert to make
sure I was targeting them. Then I added the ajax and on submit it just
processes with php. I did the ajax just like my other post and get,
but can't see why this one doesn't work.